-68.14% is the change from 499 to 159
Calculation steps:
[( 159 - 499 ) ÷ 499] x 100 = -68.14%
Formula
Percentage change = [(159 - 499) / 499] x 100
Subtract the new number by the original number
159 - 499 = -340
-340 ÷ 499 = -0.6813627254509018
-0.6813627254509018 x 100 = -68.14%